Liquid UAN with an urease inhibitor in a split application optimized N use efficiency, grain protein, yield and yield stability. EEFs did not affect greenhouse gas emissions. With the development of enhanced efficiency fertilizers (EEF), winter wheat growers have the opportunity to improve nitrogen use efficiency...

A research study reviewed factors affecting nitrogen, sulphur and water use efficiencies, and found that 4R stewardship of nutrients and some agronomic practices provided the greatest improvements. Economic and environmental sustainability of canola production is gaining more scrutiny in this era of emissions reductions and climate...

Over six years the highest wheat yields were achieved where a medium-high soil phosphorus (P) level (15 ppm) was achieved with an initial broadcast application of 327 pounds P2O5 per acre. On soils with very low P fertility, yields were four to five bushels lower...

To achieve 4R principles, placing ammonium phosphate fertilizer in a band, in or near the seed-row, at the time of seeding and at a rate that matches P removal by the crop generally provides the greatest P efficiency, long-term sustainability, and environmental protection for small...

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